#!/usr/bin/env node

const stdin = process.stdin,
      stdout = process.stdout;

const {Transform} = require('stream');

stdin.setEncoding('utf8');

let tf = new Transform();


tf._transform=function(chunk,encoding,callback){
  this.push(Buffer.from(chunk.toString('utf8').toUpperCase()));
  callback();
}

stdin.pipe(tf).pipe(stdout);
